After Week 6, the Chiefs were 1-5 and coming off their fifth straight loss, a dismal 16-10 defeat at the Minnesota Vikings. Few realized it at the time, but the signs of a turnaround were already in place. The Chiefs’ defense had been lit up in Weeks 3 and 4, allowing 38 and 36 points and more than 320 passing yards apiece to the Green Bay Packers and Cincinnati Bengals, while failing to force a turnover in either contest. But by Week 6, the defense was already turning things around. The Chiefs forced two turnovers against the Vikings, and have forced two or more in every game since. Since Week 6, Kansas City has forced an NFL-best 19 turnovers, while only giving up three ‒ best in the league. Given this stat, it’s no wonder the Chiefs rode a five-game winning streak into Sunday’s tilt with the division rival Raiders.

Meanwhile, the Raiders entered the Week 12 matchup at 5-6 in what has been an up-and-down season, but they held a 20-14 lead and had marched into field goal territory early in the fourth quarter. On 2nd-and-10, the Raiders line up with two receivers left, with rookie sensationAmari Cooper (#89) outside and Seth Roberts (#10) in the slot:

Cooper runs a streak route upfield, while Roberts run a slant to the middle of the field. The Raiders run bang play action to draw the linebackers up and open a lane to throw to Roberts, but Chiefs linebackers Derrick Johnson (#56) and Josh Mauga (#90) don’t bite on the fake. Roberts gets a step on slot corner Ron Parker (#38), but Mauga squats in the throwing lane and Raiders quarterback Derek Carr has to pull the ball down and look elsewhere. Kansas City is running a 2 Man defense where normally the linebackers have man coverage responsibilities, but the Raiders leave tight end Lee Smith(#86) in to block, which allows Mauga to play a robber role.

Since Carr has to come off his first read, Kansas City’s four-man rush has time to collapse the pocket and pressure the quarterback. The end zone perspective gives a clearer view of the congestion that leads Carr to his major mistake:

The Raiders’ offensive linemen do a solid job with their initial blocks and give Carr a clean look in which to operate. After he comes off his first read and moves to his second — also covered — he tries to move up in the pocket, but Jaye Howard (#96) defeats a double team and plugs the rush lane. That gives Tamba Hali (#91) the time to jerk free of Donald Penn (#72) and nearly sack Carr from behind. The second-year QB somehow evades that, but Dee Ford (#55) drills him from the other side.

Carr then makes his mistake: rather than just taking the sack, he tries to pass the ball and make something happen. He gets zero velocity on the throw and ends up lobbing a pass right to Mauga, who returns the ball 66 yards to the 2-yard line. Two plays later, Kansas City would tie the game.

Things continued to get ugly for the Raiders in the fourth quarter, as Carr would throw two more interceptions — one after receiver Michael Crabtree fell down, and the other after a pass went through Cooper’s hands to safety Tyvon Branch, who returned the pick for a touchdown. The game map, courtesy of Andy Guyader at the Q5.com, paints the picture of the game: a tight contest through three quarters that the Chiefs blew open thanks to Oakland turnovers in the final 15 minutes:

The Chiefs need to continue playing excellent defense because their offense lacks playmaking ability. Quarterback Alex Smithand company excel at avoiding turnovers, but without Jamaal Charles they don’t have an explosive attack. They amassed only 232 total yards of offense against a weak Oakland defense, but the late interceptions led to three touchdowns, propelling them to victory.

An encouraging sign for the Chiefs is that they managed to create these game-altering turnovers without top edge rusher Justin Houston, their best player, who missed the game with a hyperextended knee. Perhaps Ford, who was the team’s top draft pick in 2014 but has seen limited action behind veterans Houston and Hali, can carve out a role in Houston’s absence. Kansas City need to continue to ride its playmaking defense and a steady, mistake-free offense to achieve a playoff berth.

Dave Archibald is a native New Englander who lives 15 minutes from Foxboro Stadium with his wife and two children. He writes about secondary play, statistics, team building, and whatever tangents his lifelong football education takes him on.